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GB0522477D0 - Modulator - Google Patents

Modulator

Info

Publication number
GB0522477D0
GB0522477D0 GBGB0522477.9A GB0522477A GB0522477D0 GB 0522477 D0 GB0522477 D0 GB 0522477D0 GB 0522477 A GB0522477 A GB 0522477A GB 0522477 D0 GB0522477 D0 GB 0522477D0
Authority
GB
United Kingdom
Prior art keywords
modulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GBGB0522477.9A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Analog Devices Inc
Original Assignee
Analog Devices Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Analog Devices Inc filed Critical Analog Devices Inc
Priority to GBGB0522477.9A priority Critical patent/GB0522477D0/en
Publication of GB0522477D0 publication Critical patent/GB0522477D0/en
Priority to US11/315,720 priority patent/US7750749B2/en
Priority to EP06826533.9A priority patent/EP1949532B1/en
Priority to PCT/US2006/041407 priority patent/WO2007053365A1/en
Priority to CN2006800411996A priority patent/CN101331678B/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1441—Balanced arrangements with transistors using field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1458—Double balanced arrangements, i.e. where both input signals are differential
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0084—Lowering the supply voltage and saving power
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/009—Reduction of local oscillator or RF leakage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
GBGB0522477.9A 2005-11-03 2005-11-03 Modulator Ceased GB0522477D0 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GBGB0522477.9A GB0522477D0 (en) 2005-11-03 2005-11-03 Modulator
US11/315,720 US7750749B2 (en) 2005-11-03 2005-12-22 Switching circuit, and a modulator, demodulator or mixer including such a circuit
EP06826533.9A EP1949532B1 (en) 2005-11-03 2006-10-25 Switching circuit, and a modulator, demodulator or mixer including such a circuit
PCT/US2006/041407 WO2007053365A1 (en) 2005-11-03 2006-10-25 Switching circuit, and a modulator, demodulator or mixer including such a circuit
CN2006800411996A CN101331678B (en) 2005-11-03 2006-10-25 Switching circuit, modulator, demodulator, and mixer cell and method of operating the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0522477.9A GB0522477D0 (en) 2005-11-03 2005-11-03 Modulator

Publications (1)

Publication Number Publication Date
GB0522477D0 true GB0522477D0 (en) 2005-12-14

Family

ID=35516300

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0522477.9A Ceased GB0522477D0 (en) 2005-11-03 2005-11-03 Modulator

Country Status (3)

Country Link
US (1) US7750749B2 (en)
CN (1) CN101331678B (en)
GB (1) GB0522477D0 (en)

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JP4752272B2 (en) * 2005-01-05 2011-08-17 ソニー株式会社 Communication device
US8121577B1 (en) * 2007-04-09 2012-02-21 Rf Micro Devices, Inc. Controllable input impedance radio frequency mixer
US8599938B2 (en) * 2007-09-14 2013-12-03 Qualcomm Incorporated Linear and polar dual mode transmitter circuit
US7941115B2 (en) * 2007-09-14 2011-05-10 Qualcomm Incorporated Mixer with high output power accuracy and low local oscillator leakage
US8929840B2 (en) * 2007-09-14 2015-01-06 Qualcomm Incorporated Local oscillator buffer and mixer having adjustable size
US8615205B2 (en) * 2007-12-18 2013-12-24 Qualcomm Incorporated I-Q mismatch calibration and method
US8639205B2 (en) * 2008-03-20 2014-01-28 Qualcomm Incorporated Reduced power-consumption receivers
US8099070B2 (en) * 2008-04-23 2012-01-17 Telefonaktiebolaget Lm Ericsson (Publ) Passive mixer and four phase clocking method and apparatus
TWI357746B (en) * 2008-04-25 2012-02-01 Univ Nat Taiwan Signal modulation device and signal amplifier
US8970272B2 (en) * 2008-05-15 2015-03-03 Qualcomm Incorporated High-speed low-power latches
US8269571B2 (en) * 2008-06-13 2012-09-18 Bare James E Amplitude modulated pulse transmitter
US8095103B2 (en) * 2008-08-01 2012-01-10 Qualcomm Incorporated Upconverter and downconverter with switched transconductance and LO masking
US8121241B2 (en) * 2008-09-29 2012-02-21 Motorola Solutions, Inc. Method and apparatus for processing radio frequency signals
US8712357B2 (en) * 2008-11-13 2014-04-29 Qualcomm Incorporated LO generation with deskewed input oscillator signal
US8718574B2 (en) 2008-11-25 2014-05-06 Qualcomm Incorporated Duty cycle adjustment for a local oscillator signal
WO2010064451A1 (en) * 2008-12-04 2010-06-10 パナソニック株式会社 Sampling circuit and receiver utilizing the same
US8340619B1 (en) * 2009-02-13 2012-12-25 Marvell International Ltd. Phase synchronization of phased array or multiple receiver/transmitter systems
US8275331B2 (en) * 2009-04-21 2012-09-25 Qualcomm, Incorporated PA gain state switching based on waveform linearity
US8847638B2 (en) * 2009-07-02 2014-09-30 Qualcomm Incorporated High speed divide-by-two circuit
US8335476B2 (en) * 2009-07-06 2012-12-18 John Mezzalingua Associates, Inc. Communication system and maintenance method
US8791740B2 (en) * 2009-07-16 2014-07-29 Qualcomm Incorporated Systems and methods for reducing average current consumption in a local oscillator path
CN102474253A (en) * 2009-07-29 2012-05-23 京瓷株式会社 Transfer gate circuit, and power combining circuit, power amplifying circuit, transmission device, and communication device using the transfer gate circuit
US7902937B2 (en) * 2009-08-03 2011-03-08 Telefonaktiebolaget Lm Ericsson (Publ) Positive coefficient weighted quadrature modulation method and apparatus
KR101077228B1 (en) * 2009-09-17 2011-10-27 (주)에프씨아이 mixer circuit
WO2012044147A1 (en) * 2010-09-30 2012-04-05 Telekom Malaysia Berhad Mixer circuit and quadrature mixer circuit
US8854098B2 (en) 2011-01-21 2014-10-07 Qualcomm Incorporated System for I-Q phase mismatch detection and correction
US8515365B2 (en) * 2011-02-11 2013-08-20 Realtek Semiconductor Corp. Signal processing circuit and method thereof
US20130016796A1 (en) 2011-07-14 2013-01-17 Chih-Hao Sun Signal modulator and signal modulating method
US8779810B2 (en) * 2011-07-15 2014-07-15 Qualcomm Incorporated Dynamic divide by 2 with 25% duty cycle output waveforms
EP2573936A1 (en) * 2011-09-23 2013-03-27 Telefonaktiebolaget LM Ericsson (publ) Mixer unit
JP5706298B2 (en) * 2011-11-24 2015-04-22 住友電気工業株式会社 Switching circuit and envelope signal amplifier
US9154077B2 (en) 2012-04-12 2015-10-06 Qualcomm Incorporated Compact high frequency divider
JP6328028B2 (en) 2013-12-25 2018-05-23 パナソニック株式会社 Transmitting apparatus and transmitting method
US10270630B2 (en) 2014-09-15 2019-04-23 Analog Devices, Inc. Demodulation of on-off-key modulated signals in signal isolator systems
US10536309B2 (en) * 2014-09-15 2020-01-14 Analog Devices, Inc. Demodulation of on-off-key modulated signals in signal isolator systems
WO2016076798A1 (en) * 2014-11-12 2016-05-19 Mediatek Singapore Pte. Ltd. Regenerative frequency divider
US9712117B2 (en) * 2014-12-30 2017-07-18 Skyworks Solutions, Inc. Cascode switch for power amplifier
US9543897B2 (en) * 2015-02-13 2017-01-10 Qualcomm Incorporated Fully I/Q balanced quadrature radio frequency mixer with low noise and low conversion loss
US10211861B2 (en) 2015-03-17 2019-02-19 Skyworks Solutions, Inc. Multi-mode integrated front end module
US9832048B2 (en) * 2015-08-24 2017-11-28 Xilinx, Inc. Transmitter circuit for and methods of generating a modulated signal in a transmitter
WO2017222661A2 (en) * 2016-05-13 2017-12-28 The Regents Of The University Of California Frequency translating backscatter modulator with envelope control to support ofdm/qam and other envelope modulated wireless protocols
US10015038B1 (en) * 2016-12-28 2018-07-03 Adx Research, Inc. Pulse quadrature modulator and method
CN107241017B (en) * 2017-06-06 2020-08-04 绵阳市维博电子有限责任公司 Balanced differential chopper circuit and isolation amplifier based on same
CN111133631B (en) * 2017-09-05 2021-07-30 韩国科学技术院 Variable Gain Phase Shifter
CN107995142B (en) * 2017-12-04 2020-12-22 郭海燕 0dB Power Backoff Common Mode Amplitude Modulator and Quadrature Amplitude Modulation Transmitter
CN110166030B (en) * 2018-12-12 2024-09-03 北京集创北方科技股份有限公司 Switching circuit and signal acquisition system
CN112542996A (en) * 2019-09-20 2021-03-23 中国科学院微电子研究所 High-order synchronous integral demodulation circuit and method for gyro digital signal
US11183973B1 (en) * 2020-06-02 2021-11-23 Samsung Electronics Co., Ltd Method and circuit for power consumption reduction in active phase shifters
US11239797B1 (en) * 2021-01-25 2022-02-01 Qualcomm Incorporated Regenerative frequency doubler
CN115811307A (en) * 2021-09-15 2023-03-17 株式会社东芝 Semiconductor device
CN114567264B (en) * 2022-04-29 2022-08-16 成都嘉纳海威科技有限责任公司 Three-channel amplification attenuation filtering multifunctional chip
US12206362B2 (en) 2023-06-16 2025-01-21 Apple Inc. Radio-frequency mixer with stabilized biasing

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US5526389A (en) * 1993-07-16 1996-06-11 Senses Data Communicaion Spread spectrum open loop data recovery processor
US5630228A (en) * 1995-04-24 1997-05-13 Motorola, Inc. Double balanced mixer circuit with active filter load for a portable comunication receiver
US6029059A (en) 1997-06-30 2000-02-22 Lucent Technologies, Inc. Quadrature mixer method and apparatus
US5867778A (en) * 1997-12-24 1999-02-02 Northern Telecom Limited Switched gain element
US6144846A (en) * 1997-12-31 2000-11-07 Motorola, Inc. Frequency translation circuit and method of translating
US6438365B1 (en) * 1998-06-02 2002-08-20 Philsar Semiconductor Inc. Balanced mixer with feedback pre-amplifier
US6348830B1 (en) * 2000-05-08 2002-02-19 The Regents Of The University Of Michigan Subharmonic double-balanced mixer
CN1481605A (en) * 2001-07-12 2004-03-10 ������������ʽ���� Mixer circuit
JP2003060441A (en) 2001-08-10 2003-02-28 Toshiba Corp Double balance mixer circuit and quadrature demodulation circuit using it
US7054609B2 (en) * 2002-04-04 2006-05-30 Telefonaktiebolaget Lm Ericsson (Publ) Linearity improvement of Gilbert mixers
US7062247B2 (en) * 2002-05-15 2006-06-13 Nec Corporation Active double-balanced mixer
US7233774B2 (en) * 2003-01-30 2007-06-19 Broadcom Corporation RF transceiver with compact stacked mixer design for multiple frequency conversion
US7398073B2 (en) * 2005-09-06 2008-07-08 Skyworks Solutions, Inc. Low noise mixer

Also Published As

Publication number Publication date
US20070116015A1 (en) 2007-05-24
CN101331678A (en) 2008-12-24
CN101331678B (en) 2010-11-10
US7750749B2 (en) 2010-07-06

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)